I know nothing lasts forever but my exhaust has been making my ears bleed lately ands I've been putting it down to getting old but having just finished making a new stainless one that actually clears the gear linkages and seatbelt bolts I decided to have a look at the 10 year old RC40 to find there wasn`t any packing left in it.
Food for thought if you`re finding things a bit loud.
I`m so glad I made the new one repackable, the screws will be replaced with rivets or stainless before I fit it.